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UK Standard for Heat Interface Units

The UK test standard for Heat Interface Units, developed to assess UK heat network operating parameters, is regarded as an important step towards improving the overall performance of British district heating schemes.

Established as part of a UK government research project into heat network efficiency, the standard was, and continues to be, developed under the auspices of a steering group of industry experts: 

  • Gareth Jones Fair Heat Ltd
  • Valeria Khnykina SSE
  • Martin Crane Carbon Alternatives 
  • Neil Shapland National House-Building Council
  • Paul Canning E.ON Energy 
  • Phil Jones CIBSE 
  • Rufus Ford Department for Business, Energy and Industrial Strategy 
  • Steve Harper Galliard Homes 
  • Dmitry Mostovoy ENGIE
  • Ali Bahar Metropolitan 
  • Josu Aurrekoetxea Pinnacle Power
  • Robert Hunter L&Q Energy 

PURPOSE

  • To enable the performance of different HIUs to be evaluated within the context of typical UK operating conditions thereby enabling heat network developers to evaluate the performance of specific HIUs against design requirements
  • To generate operating data on the expected performance of specific HIUs given "normal" operating parameters to enable heat network operators to identify anomalous performance 
  • To provide a framework for HIU manufacturers to evaluate the performance of their equipment within the UK context thereby feeding into their continuous improvement development programmes 

OUTPUTS 

  • Mapping of key metrics over the duration of each test
  • Calculation of the annual Volume Weighted Return Temperature (VWART) from the HIU, with this being a composite of estimations of the annual volume-weighted return temperatures for domestic hot water, space heating and keep-warm functions 
  • Evidence of compliance with other performance and reliability metrics, such as speed of temperature stabilisation.  

 

UK HIU Test Regime - Technical Specification

Download PDF

Update from HIU Steering Group

Download PDF

 

RESULTS

The first manufacturers have now tested against the new standard, the results of which are below

Supplier HIU Serial Number Test Report VWART Calculation Comments
A727-20174-20194

UK Distributor: Frese

Contact
Supplier HIU Serial Number Test Report VWART Calculation Comments
L7020418

Model name:
VVX-I-R FI 1-1 RAD

Manufacturer: Danfoss
Supplier HIU Serial Number Test Report VWART Calculation Comments
L7020418

Model name: 
VVX-I-R FI 1-1 UFH

Manufacturer: Danfoss
Supplier HIU Serial Number Test Report VWART Calculation Comments
52060-05102015024

Model Name: DATA

Manufacturer: HSF B.V.
Supplier HIU Serial Number Test Report VWART Calculation Comments
MTPE1B1317A11

Model name:

MTP4R-1R-TL1/1B (ModuSat XR-ECO TP 55-10R)

Manufacturer:

Evinox Energy Ltd
Supplier HIU Serial Number Test Report VWART Calculation Comments
738965/4069451

Model name: Heating substation

F3-H2T2-GE7-E-NR-O-9-2,5-0,40-2x110-1x130
Supplier HIU Serial Number Test Report VWART Calculation Comments
033313031145

Model name:
HIU E 70/5

Manufacturer:
Essco Controls Ltd 

UK distributor:
Remeha
Supplier HIU Serial Number Test Report VWART Calculation Comments
182000101

Model Name:

SATK32105

Manufacturer:

Caleffi

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